Previously, AgentCore sessions managed storage internally or via managed session storage. The bring-your-own file system feature permits developers to mount S3 Files or Amazon EFS access points at specified paths with standard file operations, eliminating the need for pre-session data download or privileged container configurations. This allows agents to reuse existing shared skills, datasets, and outputs across sessions and microVM lifecycles.
The file system integration supports sub-millisecond latency and consistency models suitable for AI agents needing fast, shared access to tools and knowledge bases. This capability is available in all AWS regions supporting AgentCore, enabling sophisticated long-running workflows and agent collaboration scenarios.
Source & further reading
Amazon Bedrock AgentCore Runtime now supports bring-your-own file system from Amazon S3 Files and Amazon EFS ↗Source published 2026-05-06. This report was prepared with AI assistance from the linked primary-source material. Claims and limitations should be checked against the original announcement or research.